Home / 52,701.53-72,728.13-28,828.19

Finding the Fourth Proportional to 52,701.53, 72,728.13 and 28,828.19

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Solution

The fourth proportional to 52,701.53, 72,728.13 and 28,828.19 is: 39,782.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,701.53 : 72,728.13 = 28,828.19 : x
  2. Step 2: Convert to fraction form
    52,701.53/72,728.13 = 28,828.19/x
  3. Step 3: Cross multiply
    52,701.53x = 72,728.13 × 28,828.19
  4. Step 4: Simplify right side
    52,701.53x = 2,096,619,986.34
  5. Step 5: Solve for x
    x = 2,096,619,986.34/52,701.53
  6. Step 6: Final answer
    x = 39,782.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.